Reuters: US STOCKS-Wall St set to open higher day after selloff
* Consumer confidence expected to dip in Sept * Goldman expects 2015 sales growth for S&P 500 cos to shrink * Futures up: Dow 36 pts, S&P 7.25 pts, Nasdaq 16.5 pts (Adds quote, updates prices) By Abhiram Nandakumar and Sweta Singh Sept 29 (Reuters) – U.S. stocks looked set to open higher on Tuesday…